Cassava (Manihot esculenta Crantz), the “king of starch”, is an important tropical food crop and a staple food for one billion people worldwide. Cassava vacuolar invertase (MeVINV1) is involved in plant growth and development and stress defense by irreversibly breaking down sucrose into glucose and fructose. Eight candidate proteins interacting with MeVINV1 were screened from the cassava SC8 cDNA yeast library by yeast two-hybrid experiment to explore the gene function and molecular regulatory network of MeVINV1. Furthermore, yeast point-to-point verification found that MeVINV1 interacted with MeUN-3, MeMTP1, MeCASP4A3 and MePIRL3, and the interaction with MeMTP1 was stronger. Therefore, it is speculated that MeVINV1 and MeMTP1 synergistically regulate vacuolar sucrose metabolism and metal ion transport, and participate in the regulation of cassava response to metal ion stress. The results of the study would provide a scientific basis for providing new genetic resources and molecular mechanisms of stress regulation in cassava stress resistance breeding.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |